We are developing an integrated algorithm analysis and mapping environment particularly tailored for signal processing applications on Adaptive Computing Systems (ACS). Our environment allows a designer to map signal processing algorithms to an ACS faster, by an order of magnitude, than is currently possible. Our approach has been to focus on three areas of capability critical to the success of...

A useful way to investigate closed geodesics on a kaleidoscopically tiled surface is to look at the billiard path described by a closed geodesic on a single tile. When looking at billiard paths it is possible to ignore surfaces and restrict ourselves to the tiling of the hyperbolic plane. We classify the smallest billiard paths by wordlength and parity. We also demonstrate the existence of orie...

In this paper we describe a parameterizable FPGA-based implementation of a sigma-delta converter used in a 96kHz audio DAC. From specifications of the converter’s input bitwidth and data sampling frequency, VHDL generic parameters are used to automatically generate the required design. The resulting implementation is optimized to use the minimum internal wordlength and number of stages. We prot...

Introduction: There has been significant recent research into multiplewordlength or multiple-precision systems, where datapaths are constructed from operators with different bit-width [1 – 3]. However, little research has been conducted [3, 4] into high-level synthesis for these systems. The use of multiple wordlengths has a significant impact on the traditional problems of high-level synthesis...

Owing to its high complexity the hardware development of a flash ADC of larger wordlength has always been a challenging issue. Being the fastest ADC available in practice, flash ADCs are the only solution for digitizing fast signals demanded by on-line real time digital processors. As computer designers have launched 64-bit machines into use, for real time processing applications they need word...

A special case of floating point data representation is block are generally very bit efficient schemes. More recent work of floating point format where a block of operands are forced to have a joint Mitra [8][9] has proved the effectiveness of this representaexponent term. This paper deals with the finite wordlength properties of tion in the complicated area of adaptive filtering. However, this...

Nonuniform sampling occurs in many practical applications either intentionally or unintentionally. This thesis deals with the reconstruction of two-periodic nonuniform signals which is of great importance in two-channel timeinterleaved analog-to-digital converters. In a two-channel time-interleaved ADC, aperture delay mismatch between the channels gives rise to a two-periodic nonuniform samplin...